New Delhi: Over 3,100 special kits for collecting blood and semen samples, besides other evidence, to carry out immediate investigations into sexual assault cases have been distributed among States and Union Territories by the Ministry of Home Affairs, officials said Sunday.

The Sexual Assault Evidence Collection Kits (SAECK) or 'rape investigation kits' are designed to carry out immediate medico-legal investigation and aid in furnishing evidence in sexual assault and rape cases.